# Electronics **URL:** https://forums.pimoroni.com/c/discussion/electronics/15.md?page=1 [Latest](https://forums.pimoroni.com/latest.md) · [Categories](https://forums.pimoroni.com/categories.md) **Page:** 2 --- ## [Programming servo with pimorini pico board](https://forums.pimoroni.com/t/programming-servo-with-pimorini-pico-board/20164)
**Author:** [@BirdOfParadise](https://forums.pimoroni.com/u/BirdOfParadise)\ **Replies:** 3\ **Last updated:** [September 2, 2022, 4:23pm UTC](https://forums.pimoroni.com/t/programming-servo-with-pimorini-pico-board/20164 "2022-09-02T16:23:16Z")
I am wanting to work a project that uses servos to move an object around with a pico. Does anyone kno2 how many servos you can control with a pico board? I need at least 4. --- ## [Why the led will be blinking?](https://forums.pimoroni.com/t/why-the-led-will-be-blinking/19423)
**Author:** [@Alvinc](https://forums.pimoroni.com/u/Alvinc)\ **Replies:** 1\ **Last updated:** [May 3, 2022, 9:38am UTC](https://forums.pimoroni.com/t/why-the-led-will-be-blinking/19423 "2022-05-03T09:38:24Z")
Normally we will meet some questions,the bead of led strip will be blinking,what situation will make the led blinking? --- ## [Anti Static 10mm to 10mm Grounding Cable?](https://forums.pimoroni.com/t/anti-static-10mm-to-10mm-grounding-cable/19230)
**Author:** [@gizmo1990](https://forums.pimoroni.com/u/gizmo1990)\ **Replies:** 4\ **Last updated:** [April 2, 2022, 8:03pm UTC](https://forums.pimoroni.com/t/anti-static-10mm-to-10mm-grounding-cable/19230 "2022-04-02T20:03:04Z")
Hopefully it’s ok to post this question here since Pimoroni don’t sell such things? Does anyone know where one of these cables can be purchased for a reasonable price in the UK? Farnell and RS all sell them but they a… --- ## [Accurate measurement of voltage in each cell of a 20 cell battery bank](https://forums.pimoroni.com/t/accurate-measurement-of-voltage-in-each-cell-of-a-20-cell-battery-bank/18953)
**Author:** [@Jomac](https://forums.pimoroni.com/u/Jomac)\ **Replies:** 0\ **Last updated:** [February 25, 2022, 1:28pm UTC](https://forums.pimoroni.com/t/accurate-measurement-of-voltage-in-each-cell-of-a-20-cell-battery-bank/18953 "2022-02-25T13:28:11Z")
I’m working on an electric vehicle project which will have 20 Lithium batteries in series making a total of 74 volts. I need to be able to accurately measure (8bit or higher) the voltage of each cell and this is where I … --- ## [Adafruit FRM69HCW Low Power Draw](https://forums.pimoroni.com/t/adafruit-frm69hcw-low-power-draw/18829)
**Author:** [@bobtrex](https://forums.pimoroni.com/u/bobtrex)\ **Replies:** 2\ **Last updated:** [February 21, 2022, 3:09pm UTC](https://forums.pimoroni.com/t/adafruit-frm69hcw-low-power-draw/18829 "2022-02-21T15:09:07Z")
Hi Has anyone done any testing to see what power the adafruit Radio Feathers / Breakout pull in sleep ? Testing on the LowPowerLabs site says the RF modules should draw around 0.1micro amps in sleep. In my testing I g… --- ## [Using 18560 with LiPo kit](https://forums.pimoroni.com/t/using-18560-with-lipo-kit/18904)
**Author:** [@codebrane](https://forums.pimoroni.com/u/codebrane)\ **Replies:** 2\ **Last updated:** [February 17, 2022, 9:30am UTC](https://forums.pimoroni.com/t/using-18560-with-lipo-kit/18904 "2022-02-17T09:30:04Z")
Is it possible to use things such as LiPo SHIM and 3.7V/4.2V LiPo Charger with an unprotected 18650 battery which is 3.6V/4.1V? ideally something that provides charging and overdischarge protection in the same packag… --- ## [Plasma 2040 3D Printed Case](https://forums.pimoroni.com/t/plasma-2040-3d-printed-case/18416)
**Author:** [@CSW](https://forums.pimoroni.com/u/CSW)\ **Replies:** 3\ **Last updated:** [December 17, 2021, 1:45pm UTC](https://forums.pimoroni.com/t/plasma-2040-3d-printed-case/18416 "2021-12-17T13:45:01Z")
Here is my design for a snap together 3D printed case for tyhe Pimoroni Plasma 2040. Pimoroni Plasma 2040 Case w/Buttons by CSW2 - Thingiversehttps://www.thingiverse.com/thing:5085903 This case has a hole for a light p… --- ## [Charging lipo batteries](https://forums.pimoroni.com/t/charging-lipo-batteries/4169)
**Author:** [@rasputnik](https://forums.pimoroni.com/u/rasputnik)\ **Replies:** 10\ **Last updated:** [October 19, 2021, 10:03am UTC](https://forums.pimoroni.com/t/charging-lipo-batteries/4169 "2021-10-19T10:03:26Z")
I got a couple of lipo packs from https://shop.pimoroni.com/products/lipo-battery-pack but just realized I don't have a way to charge them. Given the scary warnings and the need to avoid a Samsung level disaster, tho… --- ## [Tiny2040](https://forums.pimoroni.com/t/tiny2040/16697)
**Author:** [@ckuehnel](https://forums.pimoroni.com/u/ckuehnel)\ **Replies:** 8\ **Last updated:** [March 22, 2021, 2:20pm UTC](https://forums.pimoroni.com/t/tiny2040/16697 "2021-03-22T14:20:33Z")
Is it planned to build a Tiny2040 that can be used in the TinyPico System or can I use only ESP32 devices there? --- ## [WS LCD-1.8" on Pico installation](https://forums.pimoroni.com/t/ws-lcd-1-8-on-pico-installation/17511)
**Author:** [@calleblyh](https://forums.pimoroni.com/u/calleblyh)\ **Replies:** 6\ **Last updated:** [July 18, 2021, 7:28am UTC](https://forums.pimoroni.com/t/ws-lcd-1-8-on-pico-installation/17511 "2021-07-18T07:28:59Z")
Hi, Asking for help. I am trying to get Waveshare LCD-1,8" work with Pico. It seems I don’t understand advice #5 where to find python/Pico-LCD-1.8/Pico-LCD-1.8.py on Thonny IDE. . Anybody on this forum can guide me. … --- ## [Stepper motor help](https://forums.pimoroni.com/t/stepper-motor-help/16745)
**Author:** [@MrObvious](https://forums.pimoroni.com/u/MrObvious)\ **Replies:** 0\ **Last updated:** [March 28, 2021, 8:00am UTC](https://forums.pimoroni.com/t/stepper-motor-help/16745 "2021-03-28T08:00:01Z")
Hi All I am after a little help with stepper motors and raspberry pi. I purchased one this these: https://www.amazon.co.uk/dp/B07YQLVZ86/ref=cm\_sw\_r\_cp\_apa\_fabc\_NKVQ8NHMHZKZH8CBZ60Q?\_encoding=UTF8&psc=1 To use to cont… --- ## [Permanent connectors](https://forums.pimoroni.com/t/permanent-connectors/16465)
**Author:** [@Rocket.Ian](https://forums.pimoroni.com/u/Rocket.Ian)\ **Replies:** 0\ **Last updated:** [March 1, 2021, 10:38am UTC](https://forums.pimoroni.com/t/permanent-connectors/16465 "2021-03-01T10:38:50Z")
Hi I have made a Pi 4B controlled kefir maker, using a single wire temperature sensor and the pi-mote wireless controlled mains plug to control a heater. It used 12 GPIO pins including power. It all works fine but is c… --- ## [Which Temp & Humidity Sensor?](https://forums.pimoroni.com/t/which-temp-humidity-sensor/16404)
**Author:** [@pealy](https://forums.pimoroni.com/u/pealy)\ **Replies:** 10\ **Last updated:** [February 26, 2021, 8:19am UTC](https://forums.pimoroni.com/t/which-temp-humidity-sensor/16404 "2021-02-26T08:19:58Z")
Could anyone help me choose the right sensor for Temp & Humidity? I need loads of them so hoping to use the inexpensive AM2320, AHT20, SHT40 etc. Would appreciate some help on which is most reliable/accurate. I’m curren… --- ## [Enviro+ FeatherWing: what do I need to plug them?](https://forums.pimoroni.com/t/enviro-featherwing-what-do-i-need-to-plug-them/13518)
**Author:** [@Xeno](https://forums.pimoroni.com/u/Xeno)\ **Replies:** 9\ **Last updated:** [December 15, 2020, 7:48pm UTC](https://forums.pimoroni.com/t/enviro-featherwing-what-do-i-need-to-plug-them/13518 "2020-12-15T19:48:31Z")
Hi all, I just had delivered my Enviro+ FeatherWing plus a new shiny Adafruit Feather nRF52840 Express. I also bought a new soldering iron plus accessories because I need to rebuild my tool set from scratch. But, sinc… --- ## [RGB Encoder Breakout Address Change](https://forums.pimoroni.com/t/rgb-encoder-breakout-address-change/15051)
**Author:** [@cjbussey](https://forums.pimoroni.com/u/cjbussey)\ **Replies:** 11\ **Last updated:** [October 9, 2020, 7:17pm UTC](https://forums.pimoroni.com/t/rgb-encoder-breakout-address-change/15051 "2020-10-09T19:17:12Z")
I have just purchased 2 \* RGB Encoder Breakout boards, the shop says it is possible to change the address to avoid conflicts but I cannot find any instructions to do so. Any help? --- ## [MLX90640 Thermal Camera](https://forums.pimoroni.com/t/mlx90640-thermal-camera/14270)
**Author:** [@Gitmo](https://forums.pimoroni.com/u/Gitmo)\ **Replies:** 2\ **Last updated:** [June 16, 2020, 10:07pm UTC](https://forums.pimoroni.com/t/mlx90640-thermal-camera/14270 "2020-06-16T22:07:28Z")
I am interested in putting a thermal camera inside a bird nesting box but want to keep the Arduino/Pi unit somewhere more accessible. What is the maximum length of cable I can have between the camera and the Arduino/Pi … --- ## [Bolts for holding stuff together](https://forums.pimoroni.com/t/bolts-for-holding-stuff-together/13108)
**Author:** [@Peter](https://forums.pimoroni.com/u/Peter)\ **Replies:** 8\ **Last updated:** [April 12, 2020, 1:18am UTC](https://forums.pimoroni.com/t/bolts-for-holding-stuff-together/13108 "2020-04-12T01:18:02Z")
I’m looking for bolts or screws to fit a Raspberry Pi and Pirate Audio board into a box. I know that I need 2.5mm screws but none of my local D.I.Y. or hardware shops sell anything less than 3mm. I’ve tried to make sense… --- ## [Pi 4, Fan and 16-Channel PWM](https://forums.pimoroni.com/t/pi-4-fan-and-16-channel-pwm/12536)
**Author:** [@Ag2000CO](https://forums.pimoroni.com/u/Ag2000CO)\ **Replies:** 11\ **Last updated:** [December 27, 2019, 9:45pm UTC](https://forums.pimoroni.com/t/pi-4-fan-and-16-channel-pwm/12536 "2019-12-27T21:45:01Z")
I want to add a fan to my Pi 4 configuration witch includes Adafruit 16-channel PWM HAT and 3 16-channel PWM Bonnets. The fanShim uses one of the I2C pins so need another answer. I want to use 5vdc, 200ma fan Is ther… --- ## [I2S microphone?](https://forums.pimoroni.com/t/i2s-microphone/12215)
**Author:** [@janek](https://forums.pimoroni.com/u/janek)\ **Replies:** 3\ **Last updated:** [November 20, 2019, 10:47am UTC](https://forums.pimoroni.com/t/i2s-microphone/12215 "2019-11-20T10:47:50Z")
is there a plan to support I2S microphone within new audio products? --- ## [TV Hat use in US](https://forums.pimoroni.com/t/tv-hat-use-in-us/12182)
**Author:** [@Crowbot](https://forums.pimoroni.com/u/Crowbot)\ **Replies:** 10\ **Last updated:** [November 15, 2019, 2:00pm UTC](https://forums.pimoroni.com/t/tv-hat-use-in-us/12182 "2019-11-15T14:00:18Z")
Does anyone know if the Pi TV Hat will work with US TV? TIA. --- ## [My first soldering](https://forums.pimoroni.com/t/my-first-soldering/8038)
**Author:** [@strickvl](https://forums.pimoroni.com/u/strickvl)\ **Replies:** 6\ **Last updated:** [October 28, 2019, 3:24pm UTC](https://forums.pimoroni.com/t/my-first-soldering/8038 "2019-10-28T15:24:47Z")
Two photos from my attempt to solder today. First time using a soldering iron. I’m feeling relatively good about how this turned out! Letting it cool down for a bit before I see if the BME680 board is still working! --- ## [Automation Hat Single Power multi 24vdc circuit connection](https://forums.pimoroni.com/t/automation-hat-single-power-multi-24vdc-circuit-connection/11282)
**Author:** [@jztan](https://forums.pimoroni.com/u/jztan)\ **Replies:** 5\ **Last updated:** [August 12, 2019, 5:13pm UTC](https://forums.pimoroni.com/t/automation-hat-single-power-multi-24vdc-circuit-connection/11282 "2019-08-12T17:13:44Z")
I’m working on a small fist tank project using pi zero w + automation hat. I have planned all the control connection out. However since all my equipment are 12 or 24v dc power I worrying if it possible to cut all the in… --- ## [Wide Input Shim](https://forums.pimoroni.com/t/wide-input-shim/8536)
**Author:** [@Freely](https://forums.pimoroni.com/u/Freely)\ **Replies:** 5\ **Last updated:** [April 2, 2019, 12:14pm UTC](https://forums.pimoroni.com/t/wide-input-shim/8536 "2019-04-02T12:14:57Z")
I have some questions regarding the Wide Input Shim: is it possible to combine the Wide Input Shim and the On/Off Shim simultaneously on one pi? using 12 V input, how much current do I have to provide to have the 2 A, … --- ## [Wide Input SHIM and Automation pHAT](https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191)
**Author:** [@Febu](https://forums.pimoroni.com/u/Febu)\ **Replies:** 2\ **Last updated:** [March 20, 2019, 3:53pm UTC](https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191 "2019-03-20T15:53:06Z")
Hi, I’d like to combine the Wide Input SHIM and the Automation pHAT. However, when stacking the Wide Input SHIM on top of the Automation pHAT, the SHIM is just a tad too long. Thus, I was wondering whether the last mil… --- ## [Recommended value for pull-down resistor on input?](https://forums.pimoroni.com/t/recommended-value-for-pull-down-resistor-on-input/9880)
**Author:** [@TheRiflesSpiral](https://forums.pimoroni.com/u/TheRiflesSpiral)\ **Replies:** 14\ **Last updated:** [February 9, 2019, 10:55am UTC](https://forums.pimoroni.com/t/recommended-value-for-pull-down-resistor-on-input/9880 "2019-02-09T10:55:31Z")
Hello! I’m using a Keyence LR-W70 Full-Spectrum sensor as an input to an Automation pHat. I’ve currently got it connected to an ADC input because the “off” state of the sensor is over 3v and thus never goes “low” on a b… --- ## [BH1745 breakout schematic](https://forums.pimoroni.com/t/bh1745-breakout-schematic/9711)
**Author:** [@janwillemp](https://forums.pimoroni.com/u/janwillemp)\ **Replies:** 2\ **Last updated:** [January 22, 2019, 11:46am UTC](https://forums.pimoroni.com/t/bh1745-breakout-schematic/9711 "2019-01-22T11:46:06Z")
Hi, We are using the BH1745 RGB sensor breakout in one of our prototypes, but we are now about to move everything to a custom PCB. Can you share the schematics of the BH1745 breakout? I’m trying to understand how the LE… --- ## [Making a piezo buzzer louder](https://forums.pimoroni.com/t/making-a-piezo-buzzer-louder/9678)
**Author:** [@jsykes](https://forums.pimoroni.com/u/jsykes)\ **Replies:** 9\ **Last updated:** [January 19, 2019, 5:31pm UTC](https://forums.pimoroni.com/t/making-a-piezo-buzzer-louder/9678 "2019-01-19T17:31:03Z")
I recently bought this mini speaker from Pimoroni to use with my BBC:Microbit. I’m trying to create a loud beep but the audio level is disappointingly low but according to the data sheet it has a typical output of 95db.… --- ## [Capacitive Touch Sensor](https://forums.pimoroni.com/t/capacitive-touch-sensor/106)
**Author:** [@jay7one](https://forums.pimoroni.com/u/jay7one)\ **Replies:** 2\ **Last updated:** [October 14, 2014, 12:57pm UTC](https://forums.pimoroni.com/t/capacitive-touch-sensor/106 "2014-10-14T12:57:36Z")
Hi I'm building a magnetic stirring device and wanted to add a touch sensor so that as items are placed on the top the motor starts automatically, I'm considering purchasing Adafruit Standalone Momentary Capacitive Touc… --- ## [BME680 sensor problem solved on this forum, but solution not visible for others?](https://forums.pimoroni.com/t/bme680-sensor-problem-solved-on-this-forum-but-solution-not-visible-for-others/8308)
**Author:** [@Arie](https://forums.pimoroni.com/u/Arie)\ **Replies:** 9\ **Last updated:** [August 8, 2018, 6:12pm UTC](https://forums.pimoroni.com/t/bme680-sensor-problem-solved-on-this-forum-but-solution-not-visible-for-others/8308 "2018-08-08T18:12:23Z")
Hi All, I am relatively new with the Raspberrypi and new on this forum (as of today). I found the problem below on this forum (Bme 680 python script not working). It looks the same as my problem with the BME680 sensor. … --- ## [MP2636 Power Booster & Charger Module](https://forums.pimoroni.com/t/mp2636-power-booster-charger-module/7969)
**Author:** [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Replies:** 0\ **Last updated:** [June 18, 2018, 12:40pm UTC](https://forums.pimoroni.com/t/mp2636-power-booster-charger-module/7969 "2018-06-18T12:40:16Z")
I’m looking at buying one of these MP2636 Power Booster & Charger Module https://shop.pimoroni.com/products/mp2636-power-booster-charger-module If anybody has one could you answer a few questions for me. What I want to… [Previous page](https://forums.pimoroni.com/c/discussion/electronics/15.md) [Next page](https://forums.pimoroni.com/c/discussion/electronics/15.md?page=2)